One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； April 19th
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Single-choice question: In wastewater treatment, the sedimentation velocity of wastewater entering the sedimentation tank is proportional to the particle diameter ( ); increasing the particle size helps to improve the ( ) of sedimentation. A. Cube increase B. Cube decrease C. Square increase D. Square decrease Answer: C. Square increase
In wastewater treatment, the sedimentation rate of wastewater entering the sedimentation tank is proportional to the square of the particle diameter; increasing the particle size helps to improve the sedimentation efficiency. A. Cube increase B. Cube decrease C. Square increase D. Square decrease